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| Part Number | SI4320-J1-FT | SI4320-J1-FTR | SI4320-J1-FT1R | SI4320-J-FTR | SI4320-J1-FT1 |
| Manufacturer | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs |
| Series | - | - | * | * | * |
| Package/Case | 16-TSSOP (0.173", 4.40mm Width) | 16-TSSOP (0.173", 4.40mm Width) | - | - | - |
| Packaging | Tube | Tape & Reel (TR) | Tape & Reel (TR) | Tape & Reel (TR) | Tube |
| Product Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
| Frequency | 315MHz, 433MHz, 868MHz, 915MHz | 315MHz, 433MHz, 868MHz, 915MHz | - | - | - |
| Sensitivity | -109dBm | -109dBm | - | - | - |
| Data Rate (Max) | 256kbps | 256kbps | - | - | - |
| Modulation or Protocol | FSK, OOK | FSK, OOK | - | - | - |
| Applications | Remote Control, RKE, Security Systems | Remote Control, RKE, Security Systems | - | - | - |
| Current - Receiving | 12mA | 12mA | - | - | - |
| Data Interface | PCB, Surface Mount | PCB, Surface Mount | - | - | - |
| Memory Size | - | - | - | - | - |
| Antenna Connector | PCB, Surface Mount | PCB, Surface Mount | - | - | - |
| Features | - | - | - | - | - |
| Voltage - Supply | 2.2V ~ 5.4V | 2.2V ~ 5.4V | - | - | - |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | - | - | - |
| Grade | - | - | - | - | - |
| Qualification | - | - | - | - | - |
| Mounting Type | Surface Mount | Surface Mount | - | - | - |
| Supplier Device Package | 16-TSSOP | 16-TSSOP | - | - | - |
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